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what is the formula for the area of a circle. The area of a regular polygon is half its perimeter multiplied by the distance from its center to its sides and the corresponding formulathat the area is half the perimeter times the radiusnamely A 1 2 2pr r holds in the limit for a circle. A circle has the maximum possible area for a given perimeter and the minimum possible perimeter for a given area.
Calculating Circumference And Area Of Circles Semicircles And Quarter Circles Calculate Area Graphic Organizers Circle from www.pinterest.com
The formula for the area of a circle is p x radius 2 but the diameter of the circle is d 2 x r 2 so another way to write it is p x diameter 2 2. If you know the radius of a circle you can use it to find the area of that circle. The formula for the area of a circle is pi multiplied by the radius of the circle squared.
The diameter is the distance across two extreme ends of a circle passing through the center.
A C2 4p. A p 4 D2. Just plug that value into the formula for the area of a circle and solve. The area formula is.
